SaiBook.us Multiplication

Lesson Example Discussion Quiz: Class Homework

Step-3

Title: Multiplication

Grade: 3-a Lesson: S4-L6

Explanation: Hello Students, time to practice and review the steps. Let us take next 2-5 minutes to solve the steps for the problems. This is a good exercise to check your understanding of the concepts.Second student to identify and review important steps.Focus on understanding the concepts and application to solving problems step by step.

Lesson Steps

Step

Value

Image

06	1	1	1	1	1	:	1
20	10	10				:

07	1	1	1	1	1	:	1	1
10	10					:

442

02	1	1			:
40	10	10	10	10	:
400	₁₀₀	₁₀₀	₁₀₀	₁₀₀	:

Step	Description	B	C	D
B1	Carry	4	10	0
M1	Multiplicand	0	2	6
M2	Multiplier	×	1	7
A1	D3 17 × 6 = 102 C3 17 × 2 + 10 = 44 B3 17 × 0 + 4 = 4	0 4 4	4 32 10	10 102 2
S1	D3 Bring Down 2 C3 Bring Down 4 B3 Bring Down 4	4	4	2
Sum	Product: 26 × 17 = 442	4	4	2

Step	Type	Explanation	Answer
1	Problem	Find the missing number 128 × 4 = ?
2	Step:	The given product is	128, 4
3	Clue	Product means Multiplication	\$ \times \$
4	Step:	The number that will match the result is:	\$128 \ times 4\$
5	Step:	After the Multiplication, we get	\$ 512 \$
6	SumUp	Can you summarize what you’ve understood in the above steps?
7	Choice.A	This option is incorrect because it doesn’t consider the correct multiplication of the one digit of 128 by 4	514
8	Choice.B	The product of these factors is 128 × 4 = 512, which is not equal to 521. Thus, option a is incorrect	521
9	Choice.C	The product of these factors is 128 × 4 = 512, which matches the desired result. Hence, this is the correct answer	512
10	Choice.D	The product of these factors is 128 × 4 = 512, which is not equal to 541. Thus, option d is incorrect	541
11		Answer	C
12	SumUp	Can you summarize what you’ve understood in the above steps?

Step

Type

Explanation

Answer

Problem

Find the missing number 128 × 4 = ?

Step:

The given product is

128, 4

Clue

Product means Multiplication

\$ \times \$

Step:

The number that will match the result is:

\$128 \ times 4\$

Step:

After the Multiplication, we get

\$ 512 \$

SumUp

Can you summarize what you’ve understood in the above steps?

Choice.A

This option is incorrect because it doesn’t consider the correct multiplication of the one digit of 128 by 4

514

Choice.B

The product of these factors is 128 × 4 = 512, which is not equal to 521. Thus, option a is incorrect

521

Choice.C

The product of these factors is 128 × 4 = 512, which matches the desired result. Hence, this is the correct answer

512

Choice.D

The product of these factors is 128 × 4 = 512, which is not equal to 541. Thus, option d is incorrect

541

Answer

SumUp

Can you summarize what you’ve understood in the above steps?